Separatist militants have kept international monitors away from the crash site in eastern Ukraine - in the face of international condemnation.

Obstructive: A pro-Russia militant holds up a stuffed animal as others look on at the crash site

Ukraine has accused pro-Russia rebels of destroying evidence of their guilt over the shooting down of Flight MH17.

Separatist militants, some of whom are reported to have been drunk, have kept international monitors away from the crash site in eastern Ukraine - in the face of international condemnation.

Dozens of bodies have been left lying in fields as diplomatic conflict rages between the West and Moscow over access and the need for a proper investigation into what happened.

Russian President Vladimir Putin urged the rebels to cooperate but insisted the UN-mandated investigation must not leap to conclusions.

Moscow denies involvement and has pointed a finger at Kiev's military.

The Dutch government, whose citizens made up most of the 298 aboard MH17 from Amsterdam, said it was "furious" at the manhandling of corpses strewn for miles over open country and asked Ukraine's president for help to bring "our people" home.

Diplomatic relations between Russia and the West have been tested to the limit by the tragedy.

Flight MH17 crashed in eastern Ukraine on Thursday, claiming the lives of all 298 passengers and crew on board.

Prime Minister David Cameron warned Moscow that it must shoulder the blame for the crash if is proved the plane was brought down by pro-Russian rebels.

Calls for a full and impartial investigation into what caused the tragedy has so far met with a cold response from Russian President Vladimir Putin.

Cameron said: "If this is the case then we must be clear what it means: this is a direct result of Russia destabilising a sovereign state, violating its territorial integrity, backing thuggish militias and training and arming them," he wrote in The Sunday Times newspaper.

Cameron also criticised fellow members of the European Union for being slow to act against the Kremlin.

"For too long there has been a reluctance on the part of too many European countries to face up to the implications of what is happening in eastern Ukraine," he wrote.

"It is time to make our power, influence and resources count. Our economies are strong and growing in strength.

"And yet we sometimes behave as if we need Russia more than Russia needs us."

The identities of all 10 UK victims of the Malaysia plane crash are now known after the names of the final two victims were revealed.

John Allen and Andrew Hoare were both killed when flight MH17 was shot down over Ukraine.

Mr Allen was described as a "much-loved colleague" by his friends at international law firm NautaDutilh, who said they were "shocked" by his death alongside his wife and their sons.

A tribute by the firm, which has offices in Amsterdam, Brussels, London, Luxembourg, New York and Rotterdam, reads: "We were shocked to learn that our much-loved colleague John Allen, his wife Sandra and their sons Christopher, Julian and Ian were on board the Malaysia Airlines flight en route to Kuala Lumpur that crashed in the Ukraine on July 17.

"Our thoughts are with John's family and his friends in and outside the office."

The tribute adds: "He was a person with many talents, and in addition to his professional contribution to our firm he generously shared his musical and athletic abilities with us as well.

"All of us who had the privilege of working with John during his 18 years at NautaDutilh came to know him as a kind, down-to-earth and humorous man and many of us have also lost a friend. He will be dearly missed."

Mr Allen joined the firm in 1996 and became a partner in 2007 where he played a key role in building the intellectual property practice group.

Malaysia Airlines says it has now identified the nationalities of 298 people who were on board the doomed flight.

There are also 193 victims from the Netherlands, 43 from Malaysia including 15 crew and two infants and another 27 from Australia.

The dead also include 12 people from Indonesia including one infant, four people from Germany, four people from Belgium, three from the Philippines plus a Canadian and a New Zealander.

Flight MH17 was said by eyewitnesses to have "exploded" after it was reportedly shot down by a ground-to-air missile.